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author | Alex Bennée | 2017-11-27 14:58:23 +0100 |
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committer | Alex Bennée | 2018-02-21 11:20:39 +0100 |
commit | d97544c94a37371347402bcbee19dd3748d70e48 (patch) | |
tree | 91946ed27c19fde71fdf661293224073e8c379dd /fpu | |
parent | fpu/softfloat: improve comments on ARM NaN propagation (diff) | |
download | qemu-d97544c94a37371347402bcbee19dd3748d70e48.tar.gz qemu-d97544c94a37371347402bcbee19dd3748d70e48.tar.xz qemu-d97544c94a37371347402bcbee19dd3748d70e48.zip |
fpu/softfloat: move the extract functions to the top of the file
This is pure code-motion during re-factoring as the helpers will be
needed earlier.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'fpu')
-rw-r--r-- | fpu/softfloat.c | 120 |
1 files changed, 54 insertions, 66 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 3a4ab1355f..297e48f5c9 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -133,6 +133,60 @@ static inline flag extractFloat16Sign(float16 a) } /*---------------------------------------------------------------------------- +| Returns the fraction bits of the single-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline uint32_t extractFloat32Frac(float32 a) +{ + return float32_val(a) & 0x007FFFFF; +} + +/*---------------------------------------------------------------------------- +| Returns the exponent bits of the single-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline int extractFloat32Exp(float32 a) +{ + return (float32_val(a) >> 23) & 0xFF; +} + +/*---------------------------------------------------------------------------- +| Returns the sign bit of the single-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline flag extractFloat32Sign(float32 a) +{ + return float32_val(a) >> 31; +} + +/*---------------------------------------------------------------------------- +| Returns the fraction bits of the double-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline uint64_t extractFloat64Frac(float64 a) +{ + return float64_val(a) & LIT64(0x000FFFFFFFFFFFFF); +} + +/*---------------------------------------------------------------------------- +| Returns the exponent bits of the double-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline int extractFloat64Exp(float64 a) +{ + return (float64_val(a) >> 52) & 0x7FF; +} + +/*---------------------------------------------------------------------------- +| Returns the sign bit of the double-precision floating-point value `a'. +*----------------------------------------------------------------------------*/ + +static inline flag extractFloat64Sign(float64 a) +{ + return float64_val(a) >> 63; +} + +/*---------------------------------------------------------------------------- | Takes a 64-bit fixed-point value `absZ' with binary point between bits 6 | and 7, and returns the properly rounded 32-bit integer corresponding to the | input. If `zSign' is 1, the input is negated before being converted to an @@ -300,39 +354,6 @@ static int64_t roundAndPackUint64(flag zSign, uint64_t absZ0, } /*---------------------------------------------------------------------------- -| Returns the fraction bits of the single-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline uint32_t extractFloat32Frac( float32 a ) -{ - - return float32_val(a) & 0x007FFFFF; - -} - -/*---------------------------------------------------------------------------- -| Returns the exponent bits of the single-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline int extractFloat32Exp(float32 a) -{ - - return ( float32_val(a)>>23 ) & 0xFF; - -} - -/*---------------------------------------------------------------------------- -| Returns the sign bit of the single-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline flag extractFloat32Sign( float32 a ) -{ - - return float32_val(a)>>31; - -} - -/*---------------------------------------------------------------------------- | If `a' is denormal and we are in flush-to-zero mode then set the | input-denormal exception and return zero. Otherwise just return the value. *----------------------------------------------------------------------------*/ @@ -493,39 +514,6 @@ static float32 } /*---------------------------------------------------------------------------- -| Returns the fraction bits of the double-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline uint64_t extractFloat64Frac( float64 a ) -{ - - return float64_val(a) & LIT64( 0x000FFFFFFFFFFFFF ); - -} - -/*---------------------------------------------------------------------------- -| Returns the exponent bits of the double-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline int extractFloat64Exp(float64 a) -{ - - return ( float64_val(a)>>52 ) & 0x7FF; - -} - -/*---------------------------------------------------------------------------- -| Returns the sign bit of the double-precision floating-point value `a'. -*----------------------------------------------------------------------------*/ - -static inline flag extractFloat64Sign( float64 a ) -{ - - return float64_val(a)>>63; - -} - -/*---------------------------------------------------------------------------- | If `a' is denormal and we are in flush-to-zero mode then set the | input-denormal exception and return zero. Otherwise just return the value. *----------------------------------------------------------------------------*/ |